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RAPID 2013: Laser-Melting Metal Additive Process

The new laser-melting additive-manufacturing process produces fully dense metal parts direct from 3D CAD data using a high-powered fiber laser. Parts are built in layers, in thicknesses ranging from 20 to 100 um, using a range of fine metal powders that are fully melted in a tightly controlled atmosphere. The current range of machines uses a third-generation design that includes variable powder delivery, ultralow oxygen content in the build atmosphere and an unparalleled safe-change filter system to minimize user contact with materials. Two machines are available, the AM125 and the AM250, which feature vacuum technology and low gas consumption in a rugged design. A touch-screen operator interface includes menu options for machine preparation and clean down. Consumable costs are minimized through features such as the soft recoater blade that can be rotated several times before replacement and uses low-cost filter elements to improve system reliability and cost of ownership. These additive-metal systems process a wide variety of materials including 316L and 17-4PH SS, H13 tool steel, aluminum Al-Si-12, titanium CP, Ti-6Al-4V and 7Nb, cobalt-chrome (ASTM75), and Inconel 718 and 625. Renishaw Inc. Ph: 847-286-9953 Web site: www.renishaw.com